I would like to make with arduino electronic gearing .
On master motor would be mounted quadrature encoder ( 2500 cpr ex. )
and slave motor should follow master on specified ratio. Slave motor would be step or servo motor and controlled with STEP / DIR signal.
So , we have to read encoder signals
then reduce it with ratio. ( ex. i = 20 )
every step must be divided by 20 .
and then output quadratute signal to Step motor drive.
Step rate should be up to 200 kHZ .
Any ideas how to do that ?